Yes. A product like Ccleaner doesn't need any outbound connections to function except from updates for the software itself. It could do the same job perfectly without the telemetry.Is telemetry really that "evil" for everyone here?
At least an option to opt-out should be given in my opinion.
And yes as a windows user I am against the telemetry of windows itself too, but linux is no option for me (incompatible software etc.)